Heat Shrink Tubing for Battery Packs (120mm–630mm)

Durable, heat-activated insulation for custom battery builds.

This premium polyolefin heat shrink tubing protects battery packs from moisture, abrasion, corrosion, and physical damage. Sold by the foot in a wide range of widths, it's a go-to material for RC hobbyists, e-bike builders, and electronics technicians building or repairing lithium-ion, LiPo, and NiMH battery packs.

Key Features

• Premium polyolefin material — durable, flexible, and built for battery pack insulation
• Protects against moisture, abrasion, and corrosion — shields cells and connectors during use or transport
• Reliable electrical insulation — safe for lithium-ion, LiPo, NiMH, and other battery types
• Sold by the foot — order exactly the length your project needs
• Continuous lengths — multi-unit orders ship as one continuous strand for easy application
• Easy to cut and apply — shrinks cleanly with a heat gun or other heat source
• Wide size range — available from 120mm (4.72") up to 630mm (24.80") width

Specifications

What's in the Box

• Heat shrink tubing, cut to the length and width ordered

FAQ

1. How is this sold — by length or by piece?
   By the foot. Ordering multiple units (e.g., 5) gives you one continuous 5-foot strand rather than separate pieces.
2. What battery types is this suitable for?
   Lithium-ion, LiPo, NiMH, and other common battery pack types.
3. How do I apply it?
   Slide the tubing over the battery pack or connector, then apply heat from a heat gun or other heat source until it shrinks tightly into place.
4. What sizes are available?
   From 120mm (4.72") up to 630mm (24.80") in width.

You May Also Need

Building a full battery pack? Browse Cylindrical Cells, Battery Management Systems, and Heat Shrink & Connectors for everything else you'll need.

Why Buy from Mach 1 Lithium

Mach 1 Lithium supplies the real materials DIY battery builders need — industrial-grade insulation, accurate sizing, and pricing that doesn't punish you for building it yourself.